I see you didn't bad mouth Ralph Morrison.
Ralph Morrison What is Electronics
"If we accept the idea that fields carry energy in space, it must be true at all frequencies. That is the law. If it is true for light, it must also be true for 60Hz power and at DC. For utility power, the energy travels in the space between conductors, not in the conductors. This is not the picture presented by circuit diagrams, where energy seems to be carried by conductors. In digital circuits, the signals and energy travel in the spaces between traces or between traces and conducting surfaces.
Buildings have halls and walls. People move in the halls, not the walls. Circuits have traces and spaces. Signals and energy move in the spaces, not in the traces."
No, I could not be bothered but I will have a little crack at him now!
If it is true for light, it must also be true for 60Hz power and at DC.
Light is an example of electromagnetic radiation which can be visualised in classical physics as synchronised oscillations of electric and perpendicular magnetic fields. In a vacuum, they travel at the speed of light.
They are reinterpreted in quantum physics as streams of photons, which are uncharged particles with zero mass when they are at rest. Photons do not obey the Pauli exclusion principle.
In this context, 60-Hz power and DC surely refer to electricity? 60-Hz electromagnetic waves are very low frequency radio waves! DC is not any sort of wave.
Electricity is the result of charge, and charges are carried by electrons and other particles which do obey the Pauli exclusion principle. Similar charges strongly repel, and opposite charges strongly attract. Richard Feynman has stated that every electron affects every other electron in our universe.
Electric currents are not a form of Electromagnetic radiation - Wikipedia. Mr Morrison is confusing photonics and electronics (electricity in particular). Having got that fundamentally wrong, his assertion that electrical energy is carried in the spaces between conductors is equally wrong.
His speciality seems to be circuit board layout for digital circuits. His message is to beware of interference between adjacent traces, especially in multi-layered applications. This is good advice, not because of electromagnetic radiation, but because every electron interacts with every other electron. (Photons are much better behaved!).
In digital circuits, the signals and energy travel in the spaces between traces or between traces and conducting surfaces
Surely traces are conducting surfaces?
The circuit board traces are the conductive halls filled with crowds of free electrons.
Finally, digital circuits typically operate at or near Gigahertz switching rates. The skin effect is very important at these rates. Almost always the switching is done in integrated circuits based on doped semi-conductors, not conducting metals. The quantum properties of the electron turn this subject from electrics into electronics, often at the nano-scale.
If Mr Morrison believes in his "law" he should change his title to "What is photonics"
